On 1/30/14, 9:21 PM, "Peter Mistich" <peter.mist...@rackspace.com> wrote:
>hello, > >anyone here can answer a questions about OST Failover Configuration >(Active/Active) I think I understand but want to make sure. > >I configure 2 oss servernames = node1 and node2 with 2 shared drives >/dev/sdb and /dev/sdc and on node1 > >I run the command on node1 mkfs.lustre --fsname=testfs --ost >--failnode=node2 --mgsnode=msg /dev/sdb > >I run the command on node2 mkfs.lustre --fsname=testfs --ost >--failnode=node1 --mgsnode=msg /dev/sdc > >I mount /dev/sdb on node 1 and mount /dev/sdc on node2 > >if node1 fails then I just mount /dev/sdb on node2 and that is how >active/active works > >is this correct ? It is correct for Lustre, as stated in other replies you need some more goop for a full solution. However, ‹-failnode is depreciated. It is better to format using the --servicenode option, listing both the primary and secondary nodes: mkfs.lustre --fsname=testfs -ost --servicenode=node1@NID --servicenode=node2@NID ŠŠ That removes the first-mount issue present with -‹fail node. Also, you can use Œtuners.lustre -‹print to verify failover NIDs are correct on disk. cliffw > >Thanks, >Pete >_______________________________________________ >Lustre-discuss mailing list >Lustre-discuss@lists.lustre.org >http://lists.lustre.org/mailman/listinfo/lustre-discuss > _______________________________________________ Lustre-discuss mailing list Lustre-discuss@lists.lustre.org http://lists.lustre.org/mailman/listinfo/lustre-discuss
